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Pressure Effects on Baroplastic Diblock Copolymer Films

✍ Scribed by Junhan Cho

Book ID
102944530
Publisher
John Wiley and Sons
Year
2011
Tongue
English
Weight
522 KB
Volume
21
Category
Article
ISSN
1022-1344

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✦ Synopsis

Abstract

The effect of pressure on the phase behavior of diblock copolymer films is studied by using a field‐theoretic simulation based on a RPA approach for compressible polymer mixtures in the spirit of the TDGL formalism. Some selected baroplastic copolymers exhibiting pressure‐induced suppression of ordering are taken as a model system. The simulation provides a precise description of patterns inside the pressurized baroplastic copolymer films and also of residual layering triggered by selective surfaces. In addition, the TDGL character of the simulation gives the dynamic pathway toward lower‐energy states for the given block copolymer films upon pressurization. The suggested field‐theoretic simulation may be of great use for designing pressure‐related baroprocessing of thin copolymer films.magnified image

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